I've got a different take on this. I'm not going to say that it's a "magical vape", but who needs magic when you can use science and math to do the same thing?
Mods not only differ in appearance and "features", but also in performance. They are not all created equal; some mods legitimately do "hit harder" than others and this can be quantified. This is what people are referring to when they talk about "voltage drop" and the internal resistance of the mod. Atmizone wrote a great blog on the subject: "Voltage Drop – Not Where You Think". The higher the internal resistance of your mod, the higher the voltage drop due to it will be. The more voltage you lose to the body of your mod, the less is transmitted to your atomizer, resulting in it "not hitting as hard".
This is easy to test and calculate on your own equipment at home if you have an inline meter to read voltage under load. Make sure to use the exact same battery and atomizer when comparing mods to each other.
I've done this on my equipment, and I'll say this about the Simplicity: it is very well-designed and executed, and has a very low internal resistance and thus very low voltage drop due to the mod. In my collection, it fared significantly better than every other 14500 mod except one.
The exception was the Bagua, and it was actually dead even - my brass Bagua, stainless steel Bagua, and Simplicity exhibited identical voltage drop. However, this performance from the Baguas was only achieved after sending off to Korea a second time to replace their magnetic switch assemblies (which are an utter disaster) with the "soft" spring switch assemblies. You really can't get much lower than this: the only better results I got were from a brand new Paps Lux 2.5, but even that was by the slimmest of margins and it's not an exact apples-to-apples comparison since I obviously couldn't use the same battery in the Paps.
So, in my experience, there is exactly one 14500 mod that performs equally well to the Simplicity: the Bagua. However, my opinion on these two mods is night vs. day. My Simplicity has exactly one flaw: dat gap. For the Baguas, I had to send off to another country for additional parts at my own expense to even get them to function correctly. Yes, the Bagua has adjustable screws to dial in the 510 connection and battery; this might seem like a good thing until you find out that the design sucks, they like to adjust themselves, and you have to pull out a screwdriver every time you want to swap your RBA... Add to this that the Simplicity's connections are palladium-plated and thus will never tarnish or need cleaned, vs. the Bagua's unplated brass connections which require regular maintenance to preserve performance.
"Simplicity" is the perfect name for this device: it delivers all of the performance with none of the hassle.
